Conduit end fitting



May 29, 1923.

F. l JOHNSON CONDUIT END FITTING Filed Aug. 27. 1920 5mm 51 4 671211 Johns on Patented May 29, 1923.

UNITED STATES FREDERICK I. JOHNSON, or

JOHNSON,

WARREN, RHODE ISLAND, ASSIGNOR T0 MARY W.

OF WARREN, RHODE ISLAND.

CONDUI'I END FITTING.

Application filed August 27, 1920.

To all whom it may concern:

Be it known that I, FREDERICK I. JoHN- soN, a citizen of the United States, residing at \Varren, in the county of Bristol and State of Rhode Island, have invented certain new and useful Improvements in Conduit End Fittings, of which the following is a specification.

This invention relates to an end-fitting for an electrical conduit of the class adapted to close the end thereof, to protect the electric wires leading therefrom and permit the fitting to be-screwed onto the end of a threaded conduit or pipe without twisting the wires leading therethrough.

,The nature and advantages of the invention will be better understood when the following detail description is taken in connection with the accompanying drawings, the invention residing in the combination and arrangement of parts as claimed.

In the drawings forming part of this specification, like numerals of reference indicate similar parts in the several views and wherein i Figure 1 is a sectional side elevation of my improved device showing one means of securing the nut in the neck portion thereof.

Figure 2 is a side elevation of the device illustrated in Figure 1, showing another means of securing the nut member in the neck portion thereof.

Figure 3 is a bottom view of the device.

Figure 4 is a side elevation of the fitting mounted on the end of an electric conduit.

My improved device is preferably constructed of thin sheet stock having aneck or nut-receiving portion 10 in the form of a cup with a bottom portion 11 punched out leaving an inwardly-extending bottom flange 12 and having an outwardly extending annular flange 13 at its outer end. A separate nut member 1a is formed of thicker stock than this casing portion, which nut member is ripheral polygonal contour, and the neck portion of the casing may be swaged by a simple process to engage these faces of the nut to prevent the same from rotating therein, and as illustrated in'Figure 1, finger members 15 may be formed from the stock of the neck and bent over the inner face of the nut to secure it in position therein.

The usual insulating head member 16 is provided with a pe- Serial No. 406,337.

ordinarily provided with a lower edge flange 17 and to connect this nut-engaging neck member to the flange portion of this head, I have provided a band member 18 which has inwardly-turned upper and lower edges 19 and 20 the lower edge engaging the flange 13 of the neck member while the upper edge 20 is turned inwardly'over the flange member 17 of the head member thereby providing a simple and effective means for connecting the neck member to the head member so that one may freely rotate relative to the other.

In some instances instead of providing the inwardly-turned fingers 15, illustrated in Figure 1, for securing the nut in the neck member I swage that portion 21 of the neck member above the nut, over the edge thereor". to securely bind the nut in position in this end fitting.

By my improved construction this end fitting comprises but four pieces and the neck portion may he held to turn freely relative to the band portion, if desired, and the head 16 may also be loosely mounted in the band portion 18 to turn freely there in whereby the head member may be held stationary relative to the other parts while the neck portion is being screwed onto the threaded end of the conduit, 22 without twisting the electrical wires 23 passing through the conduit and out through the openings in the end of the head. a

This device is extremely simple and practical in construction and may be formed of very thin stock and a separate nut may be employed of thicker stock only where such thickness is required. Then again by this construction the incasing of the nut member 14 strengthens the same, permitting its walls to be made thinner than would otherwise be the case.

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device susceptible, the invention being defined and limited only by the terms of the appended claims.

I claim:

1. A conduit and fitting comprising an insulating head member, a nut-engaging neck member having an integral outturned' flange and a band member having its edge iii! IWAL turned inwardly to connect said flange portion to said head whereby one may rotate relative to the other, a nut in said memher, and means in said neck member for firmly embracing said nut.

2. A conduit end fitting comprising an insulating head having a flange, a nut-carrying neck member having an integral out turned flange upon Which said head rests, and a band having one edge turned over said head flange and its other edge turned over said neck flange loosely connecting them together.

3. A conduit end fitting comprising an insulating head having a flange, a nut-carrying neck member having an integral outturnedflange upon which said head rests, and a band having one edge turned over ,l'i'l said head flange and its other edge turned over said neck flange loosely connecting them together, a nut in said neck member, and means in said neck member for rigidlv embracing said nut.

4. A conduit end fitting comprising an insulating head, a metal band engaging said head, its lower edge forming an inturned flange, a neck member having an outturned flange loosely engaging said inturned flange to permit relative rotation of said parts, a nut, said. neck portion embracing the external contour of said nut and inturned integral fingers in said neck for locking said nut therein.

In testimony whereof I aflix my signature.

FREDERICK I. JOHNSON. 

